Master control unit for a radio frequency controlled lighting system



FIG. 1 is a perspective view of a master control unit for a radio frequency controlled lighting system showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a master control unit for a radio frequency controlled lighting system, substantially as shown and described. 